KDS 3 IDE can't debug for FRDM-KL25Z <Help!>

I'm using Kinetis Design Studio 3 IDE for developing on the FRDM KL25Z. I cannot debug or flash for some reason but my application builds perfectly. When I read the kl25z documentation it says it uses OpenSDA but I don't see it anywhere as a choice when I go to Debug As->Debug Configurations->. What step have I missed in setting up KDS?